Your task is to come up with a unique example of something that could be tested with a single-samplez-test (pay attentions to the requirements for this test) and conduct the confidence interval and effect size calculations. Be creative!(Do not copy an example for the book or an online source -- you are making this up -- that should be even easier!)

a) Provide your example scenario for a single-sample z-test that includes the population mean, population standard deviation, sample size, and sample mean. Do not only present the numbers; you need a reasonable example of something that could be tested with a single-sample z-test.

b) Explain why your example is appropriate for a single-sample z-test.

c) Calculate both the 99% confidence interval and effect size for your example, showing your work for each.